Radiator for explosive-engines and method of making same.



No. 855,239. PATBNTED MAY 28, 1907.

J. P. FARIES.

RADIATOR FOR EXPLOSI'VE ENGINES AND METHOD OF MAKING SAME. (APPLICATIONFILED FEB. 26. 1904.

2 sums-sum 1.

MJWWM I No. 855,239. PATENTED MAY 28, 1907. J. F. FARIES.

RADIATOR. FOR EXBLOSIVE ENGINES AND METHOD OF MAKING SAME. APPLIOATIONTILED FEB. 26. 1904.

I 2 SHEETS-SHEET a.

UNITED STATES PATENT oFFroE,

JAMES F. FARIES, or DECATUR, ILLINOIS.

RADIATOR FOR .EXPIIOSLVEQENGINE'S AND, m'E rHoD Or MAKING SAME-Specification of Letters Patent.. Application filed February 26,1904.Serial No. 196,495;

Patented May 28, 1907.

To all-whom it may concern/.11

Be it known that I, J MEs'F. FARIES, a citizen of the United States,residing at Decatur, in the county of Macon and State of Illinois, haveinvented certain new and useful Improvements in Radiators forExplosive-Engines and Methods of Making the Same, of which the followingis a specification, reference ing drawings.

My invention relates to radiators for explosive engines, and hasparticularly to do with radiators adapted to be used with aircooledengines, such as are used to a considerable extent for automobiles. Ingasolene-engines, air for cooling-purposes, it is the practice toprovide. the cylinder with a series of plates or flanges secured closelyin contact with the cylinder so as to 'radiate the Heat generated by theexplosion within the cylinder; and it has been generall understood bythose skilled in the art that copper was the best material for suchflanges, owing to its high conductivity of heat. Much difficulty has,however, been experienced in securing a suitable contact betweencast-iron, of which the cylinder or explosionchamber has been made.Owing to the high temperature necessary to braze to cast-iron, it hasbeen found to be impracticable to unite the copper flanges to thecylinder in that way, as the copper would fuse, to a greater or lessextent, at the brazing temperature; and

consequently, while in some instances a measure of success has been'secured, far more frequently the result has been entirelyunsatisfactory. Various other expedients have, therefore, beentried,such as shrinking the copper upon the c linder. This method,however, is not satis actory, owing to .the fact that a proper contactis not secured between the copper and cast-iron.

- restricted to the making 4 Another method that has been employed hasbeen to cast flanges on the cylinder, but

owing to the comparatively low conductivity of the iron the radiationhas not been satisfactory. .I have, however, discovered a method bywhich copper flanges may be united to a; cast-iron ,cylinder; and suchmethod, which, in its broadest aspect, is not of-radiators for explosiveengines, but may be employed for the uniting of copper to cast-iron forany other purpose desired, constitutes one of the prinmy. presentinvention.- My

being-had to the accompany- I or motors employing the, copper and theinvention also includes the product of such method.

My improved method consists in uniting the cop er and cast-iron by meansof a joining-me ium of such character that it may be united to copper bybrazing at a lower temperature than the fusing-point of the copper, andwhich is also susceptible of being welded to cast-iron. I employ forthis purpose sheet steel, the steel being welded to the cast-iron bymelting the cast-iron and allowing it to cool in contact with the steel.The copper flanges are then united tothe steel, by brazing in the usualway. For example, in making a cylinder the molten cast-iron is pouredinto a cylinder of extremely thin sheet steel,the result being that themolten cast-iron raises the steel to a welding heat, the cast-iron andsteel being thus firmly and inseparably united. The copper flanges inthe form of rings are then placed in position upon the steel outersurface of the cylinder, and brazed thcr to in the usual wa The copperis thus, in effect, brazed to t e castiron cylinder,insuring the parts,with the maximum of conductivity.

In the accom anying drawings,-Figure 1 is an elevation of anautomobile-motor, showing the radiator; Fig. 2 is an edge view thereofFig. 3 is a partial vertical section, illustrating in detail theconstruction of the radiator; Fig. 4 is a horizontal section thereof, online 4-4 of Fig. 3; Fig. 5 is an enlargedsec- 'tional detail, furtherillustrating the construction of the radiator; and Fig. 6 is a persective view of part of one of the copper anges.

Referring to the drawings-,7 indicates the motor,of which 8 is thecylinder and 9 the radiator. The external steel shell of the cylinder 8is shown at 10 in Figs. 3, 4 an 11 indicates one of the radiatingflanges, which, as above described, are made of copper and are brazedupon the outer surface of the steel shell of the cylinder. In practice,said flanges are made annular in form and 'are provided'at their innermargins wlth a lip 12, shown in Figs. 5 and 6. employed to determinesuccessive flanges, said flan e the width of said lips if desired.

bent preferably at right-angles, as The ips 12 may be the distance apartof In practice, after-"the casting together of the steel '-shell andcylinder in the manner above described, the flanges ll'are succestheperfect unionof as shown in Fig. 3, but s may'be placed farther apartthan sivel-y flplaced in position thereupon,tlielower ange-being firstput'in positibn, and the radiator beivr ilglbuilt u by adding flangessuccessively. en eac a next to the surface 0' the shel .efi thecylinder. In order to provide for holding a proper amount of spelter thelips 12 areformed by bending the inner margins of the flanges, as shown1n Fig. 5, so that the upper inner edge of each flange is rounded, as sown at 13 1n Fig. 55- An annular pocket is thus formed for the s elter,which isshown at 14 in Flg. 5. When al the flan es of the radiator havebeen put in'place t e-c linder is heated in a crucible, or; in any'ot ersuitable manner,.

to the tem erature necessary .to braze the copper an steel. When the.spelter' 1s heated hot-enough to flow, owing to the manher in whichi-tfis disposed upon the flanges 1t runs downbetween the lips 12 and thesuri face'of the shell 10, so that the-lips are effeictive'ly brazed tothe shell. I thus secure a perfect union of all the parts of the cylin'der, with the result'that t ment to the transmission of the heatom ereis no. im edithe cylinders to the radiating flanges or disks,i+'thereby'greatly increasingthe efliciency of the radiator.

. 1 So far as I am aware, no one has'heretofore united copper withcast-iron in the manner described, and my invention therefore includesbroadlynot only such 'method, ,but

also the product producedthereby; More-- over, while'my'inventionisdesigned pr'i-.

manly for use -inuniting. copper and cast-.

iron, I wish'it' to be understood, that the terms fcop er,-c ast-ironand steel, as

1 and herein emp 'oyed, are used in a generic sense, are to beinterpreted as covering also equivalent metals, as my invention includesthe application of the process, described to the umtin of such othermetals as are susceptible o the same treatment:

nge is put in lace a small amount of spelter, or other razing-material,is laced 'u on each flange That which I claim as my invention desire tosecure byLetters Patent is,

1.- The method of uniting metals the'fusibility of one'o'r' which isbelow the brazingtemperature of the other, which consists 1n unitingsaid. metals to a joining-medium'the fusibility of which is less thanthat of one of the metals to be joined, and which is suscepr tible ofbeing. brazed to the more fusible of said metals, substantially asdescribed.

2. The methodof uniting metals the fusi bility of one of which isbelow'the bra'zingtemperature of the other, which consists 1nemp oying aj-oinin -medium the fusibility of which is less than t at of one ofthemetals to be joined, and vwhich'is susceptible .of being -iron, whichconsists in wel ing sheet steel-to the iron and then brazing the copperto, the

steel, substantiall as described.

' 5. A cylinder, aving a thin external steel -shell welded thereto, andcop er radiatings flanges brazed to said shell, su stantially as.

described.

shellwelded thereto, and copper radiatingfl'anges brazed to said shell,said flan es having angularly disposed lips at their inner ends,substantially as described.

JAMES. F. FARIES.

Witnesses:

MYERS,

L. MAE SAW-YAR.

6. Acylinder, having a thin external steel d

